• 1979: “A puzzling haze over the Arctic ice packs has been identified as a byproduct of air pollution, a finding that may support predictions of a disastrous melting of the earth’s ice caps.”

• 1982: “Because of global heating attributed to an increase in atmospheric carbon dioxide from fuel burning, about 20,000 cubic miles of polar ice has melted in the past 40 years, apparently contributing to a rise in sea levels …”

• 1999: “Evidence continues to accumulate that the frozen world of the Arctic and sub-Arctic is thawing.”

• 2000: “The North Pole is melting. The thick ice that has for ages covered the Arctic Ocean at the pole has turned to water, recent visitors there reported yesterday.”